Method visit

datafusion/common/src/tree_node.rs:128–136

(
        &'n self,
        visitor: &mut V,
    )

    /// ```
    #[cfg_attr(feature = "recursive_protection", recursive::recursive)]
    fn visit<'n, V: TreeNodeVisitor<'n, Node = Self>>(
        &'n self,
        visitor: &mut V,
    ) -> Result<TreeNodeRecursion> {
        visitor
            .f_down(self)?
            .visit_children(|| self.apply_children(|c| c.visit(visitor)))?
            .visit_parent(|| visitor.f_up(self))
    }

    /// Rewrite the tree node with a [`TreeNodeRewriter`], performing a
    /// depth-first walk of the node and its children.